Missing Ally

Hmmm…we have to be careful Peter.

I envision ‘allies’ would be independent nations under their own independent leaders,
making their own independent political decisions.
Sarmations in northern Briton sound more like mercenaries hired by Rome, firmly under
Roman control, and are represented by II/56 Lancers (3Kn), II/78 Cataphractari (3Kn) or
II/82 Foederati (3Kn).

After all, if ‘just troops of another nation fighting together’, then the II/32 Later Carthaginian
Army would consist almost entirely of ‘allies’!

And it is interesting that you mention DBMM.
I have started compiling (both got diverted by other projects) a new updated version of the “Army List Corrections”
(see static.wikia.nocookie.net/fanaticus-dba/images/c/c3/Army_List_Corrections_for_DBA_3.0.pdf/revision/latest?cb=20180124064046 )
This new version will incorporate ‘preceded by <----> followed by’ information, as well as
all the DBMM allies in green with dates so that players can ignore them if they wish…
…since if DBMM has these extra allies, then why can’t DBA 3.0 do the same?
Phil Barker has put a lot of effort into the DBMM allies and dates, and we would
be foolish to just ignore it all.

Here is a small sample:-

I/3 Nubian Kush (3000–1480 BC) & Ethiopia (1480–1080 BC)     prehistory ←→ later dominated by I/22a, revolts into I/46a.
Enemies: I/2a, I/2b, I/3, I/7a, I/22a.
Allies: I/2a Egyptians (in 2310 BC only), or Egyptian Mercenaries (if Kush in 1645-1480 BC with 3Bd + 4Bw + 4Bw/LH)
(The Egyptians may have conquered Kush by 1480 BC, but Nubian-like tribes remained independent further south in Ethiopia)

I/4b Guti “Great Revolt” (2250–2112 BC)      preceded by I/4a ←→ driven out by I/11b and followed by I/37a.
Enemies: I/5b, I/9, I/11a, I/11b.
Allies: (in 2250 BC only) I/5b Elamites and/or I/9 Mari, or (in 2193-2112 BC) I/11a Akkadian vassal city-states
(DBMM also allows I/4a Anatolian allies in 2250 BC only, but these seem to be already part of the I/4b army in DBA.
The Guti invaded and dominated Akkad, already weakened by the I/1c Sumerian Revolt, and took control of Sumeria)

I/5c Early Anshan, Susiana & Middle Elamites (2100–1401 BC)      preceded by I/5b ←→ followed by I/5d.
Enemies: I/4c, I/10, I/11b, I/12, I/15, I/19, I/21a, I/23a.
Allies: (in 2100-1401 BC) I/4a Zagros Highlanders, or (in 2100-1850 BC) I/6a Amorites and/or I/10 Melukhkhans,
      or (in 1769 BC only) I/15 Mari and/or I/15 Amorite Babylon, or (in 1768 BC only) I/12 Eshnunnan vassals,
      or (in 1764 BC only) I/6a Malgi-Amorites and/or I/15 Assur and/or 1/12 Eshnunnan,
      or (in 1650-1595 BC) I/4c Kassites.

I/8c Dilmun, Saba, Ma’in or Qataban (1300–312 BC)                   preceded by I/8a ←→ replaced by II/23.
Enemies: I/6b, I/8b, I/8c.        Dilmun Allies: I/8a vassals (in 1300-312 BC), or I/21a Babylon (in 1300-1000 BC)
                          Saba, Ma’in, Qataban Allies: I/8a vassals (in 1300-312 BC), or I/6b Arabs (in 700-312 BC)

I/19 Mitanni (1595–1274 BC)                        preceded by I/4c Hurrians ←→ conquered by I/24a and I/25a.
Enemies: I/4c, I/5c, I/6b, I/15, I/16, I/19, I/20b, I/21a, I/22a, I/24a, I/25a.
Allies: (in 1595-1341 BC) I/6a Amorites and/or I/20b Syro-Canaanites,
      or (in 1340-1274 BC) I/6a Amorites and/or I/24a Hittites.
(Mittanni suffered from a series of succession civil wars beginning in 1390 BC)